1. Non-Blocking I/O
In standard I/O systems, a request can be issued only after the previous request’s response has arrived. However, Node.js doesn’t follow the same principle. Node.js first sends the request in an event loop and then it handles the next request in the call stack. As soon as the request that is pending gets executed, it informs Node.js and then gets the response rendered on the browser.
- Core Modules- They are pre-compiled along with the Node.js library. It provides the developers with the code sections that recur often, whose absence would make it tedious for developers.
- User Defined Modules- Developer creates these modules for a specific purpose in his/her application.
4. Functional Programming
It is the process of developing software by composing pure functions. It has some minimum requirements and it can be done only by avoiding shared state, side effects, and mutable data. Functional programming isn’t imperative, rather is declarative. It is a programming paradigm, which means that it’s the procedure of developing software using a few fundamental principles. The code of functional programming often tends to be pretty concise, making it easy to understand and implement.
5. Asynchronous programming
Callback is one of the most commonly used functional programming concepts. It is a function which gets executed once another function gets executed. It can be passed as an argument to another function and can be executed or returned from that function so that it can be executed later.
A stream is an abstract interface implemented by various objects in Node.js. So in simple words- it is a collection of objects in sequential flow. Streams can be readable, writable or even both. Request made to an HTTP server, sliding window protocol are the examples of a stream.
Closures are vital to the success of a web application development. A closure basically stores the function state, even after that function has been returned. To create a closure, a function has to be defined and then exposed i.e. it has to be returned or passed on to another function. The inner function would have access to all the variables that were declared in the outer function. This technique is generally used to give data hiding and data privacy.
10. Aspect Oriented Programming
Aspect Oriented Programming is a technique for modifying the behavior of functions, methods, and objects non-invasively. It allows us to add new behaviors and also combine and modify existing behavior from the outside. Despite the presence of many other techniques for adding and modifying behavior, such as inheritance, delegation, and composition, AOP tends to be more flexible and less invasive in most situations.
Our developers in the technical team have been working extensively with lots of Node.js over the past 2-3 years, and these are the concepts that they felt would be essential for you to learn. They have been using these concepts extensively on various project implementations. We would like to share the knowledge that we obtained about the same with our readers. They had listed down the concepts that would be the most important to learn after their internal discussion.
So, the above mentioned 10 node.js concepts are extremely useful in developing an efficient website that can serve the requirements of the user, and hence it is imperative that they are implemented in the right places to make the best use of their functions. It would be imperative for you to use it to for the best development of your website. We have also listed some of the top Node.js development tools in our other article.
Please share your feedbacks on the listed libraries or if you think any of the important ones are missing in our list, mention the same in the comments section. We would be excited to read your feedback on the same. Happy Coding.